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27 lines
844 B
Diff
27 lines
844 B
Diff
From c9d41c728cb9fc5c100030d39d81be3d8e0b26d7 Mon Sep 17 00:00:00 2001
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From: Roy Pledge <roy.pledge@nxp.com>
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Date: Wed, 8 Aug 2018 17:13:48 -0400
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Subject: [PATCH] staging/fsl_qbman: Recalcuate cursor after consuming ring
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If the dqrr_init() function consumes frames during init
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the cursor needs to be updated before anything starts
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to use the ring.
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Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
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---
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drivers/staging/fsl_qbman/qman_low.h | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/staging/fsl_qbman/qman_low.h
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+++ b/drivers/staging/fsl_qbman/qman_low.h
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@@ -682,6 +682,9 @@ static inline int qm_dqrr_init(struct qm
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(0 ? 0x10 : 0); /* Ignore SP */
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qm_out(CFG, cfg);
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qm_dqrr_set_maxfill(portal, max_fill);
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+
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+ /* Recalculate cursor as we may have consumed frames */
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+ dqrr->cursor = dqrr->ring + dqrr->ci;
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return 0;
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}
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